<template>
  <div id="app">
    <router-view />
  </div>
</template>

<script>
export default {
  name: 'App',
  created() {
    //在页面加载时读取sessionStorage里的状态信息
    if (sessionStorage.getItem("store")) {
      this.$store.replaceState(Object.assign({}, this.$store.state, JSON.parse(sessionStorage.getItem("store"))))
    }

    //在页面刷新时将vuex里的信息保存到sessionStorage里
    window.addEventListener("beforeunload", () => {
      sessionStorage.setItem("store", JSON.stringify(this.$store.state))
    })
  }
}
</script>
<style>
::-webkit-scrollbar {
  --bar-width: 5px;
  width: 10px;
  height: 5px;
}

::-webkit-scrollbar-track {
  background-color: transparent;
}

::-webkit-scrollbar-thumb {
  background-color: rgba(0, 0, 0, 0.1);
  border-radius: 20px;
  background-clip: content-box;
  border: 1px solid transparent;
}
</style>